SMS message: "Congratulations! you are eligible for a financial loan at GRANTWORK, kindly contact  your representative at enquiries@grantwk.com for details" The # 1-780-978-4598 was the sender.

After a quick search online for the "grantwk.com" domain info, here is the result with the office phone numbers:

Registrant Organization: WHOIS PRIVACY PROTECTION SERVICE, INC.
Registrant Street: PO BOX 639
Registrant Street: C/O GRANTWK.COM
Registrant City: KIRKLAND
Registrant State/Province: WA
Registrant Postal Code: 98083
Registrant Country: US
Registrant Phone: +1.4252740657
Registrant Phone Ext:
Registrant Fax: +1.4259744730
Registrant Fax Ext:
Registrant Email: Email Masking Image@WHOISPRIVACYPROTECT.COM
Registry Admin ID:
Admin Name: WHOIS AGENT
Admin Organization: WHOIS PRIVACY PROTECTION SERVICE, INC.
Admin Street: PO BOX 639
Admin Street: C/O GRANTWK.COM
Admin City: KIRKLAND
Admin State/Province: WA
Admin Postal Code: 98083
Admin Country: US
Admin Phone: +1.4252740657
Admin Phone Ext:
Admin Fax: +1.4259744730
Admin Fax Ext:
Admin Email: Email Masking Image@WHOISPRIVACYPROTECT.COM
Registry Tech ID:
Tech Name: WHOIS AGENT
Tech Organization: WHOIS PRIVACY PROTECTION SERVICE, INC.
Tech Street: PO BOX 639
Tech Street: C/O GRANTWK.COM
Tech City: KIRKLAND
Tech State/Province: WA
Tech Postal Code: 98083
Tech Country: US
Tech Phone: +1.4252740657
Tech Phone Ext:
Tech Fax: +1.4259744730
Registrar Abuse Contact Email: Email Masking Image@enom.com
Registrar Abuse Contact Phone: +1.4252982646